题目内容
6.It's not polite to speak loudly ________ you are having a meal.( )| A. | while | B. | after | C. | until | D. | since |
分析 当你在吃饭的时候,大声说话是不礼貌的.
解答 答案:A while意为"当的时候"强调两个动作同时进行;after意为"在以后";until意为"直到";since意为"自从…以来".根据"you are having a meal"以及"speak loudly"可知吃饭和说话是同时进行的动作,所以要用while,故选A.
点评 首先要掌握while,after,until,since这几个连词的意思及用法,然后结合具体的题意做出正确选择.
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